#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
#include<vector>
using namespace std;

int main() {

	int a = 1;
	double b = 2.3;
	a = b;
	//b = a;
	cout << a << ':' << typeid(a).name() << endl;
	cout << b <<':' << typeid(b).name() << endl;
	return 0;
}